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drm/msm/gpu: Check the status of registration to PM QoS

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There is a need to check the returned value of the registration function.
In case of returned error, print that and stop the init process.

Fixes: 7c0ffcd40b ("drm/msm/gpu: Respect PM QoS constraints")
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Patchwork: https://patchwork.freedesktop.org/patch/620336/
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Lukasz Luba 2024-10-18 12:18:11 +01:00 committed by Rob Clark
parent 394679f322
commit 8f32ddd87e
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/msm/msm_gpu_devfreq.c
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@ -140,6 +140,7 @@ void msm_devfreq_init(struct msm_gpu *gpu)
{
struct msm_gpu_devfreq *df = &gpu->devfreq;
struct msm_drm_private *priv = gpu->dev->dev_private;
int ret;
/* We need target support to do devfreq */
if (!gpu->funcs->gpu_busy)
@ -156,8 +157,12 @@ void msm_devfreq_init(struct msm_gpu *gpu)
mutex_init(&df->lock);
dev_pm_qos_add_request(&gpu->pdev->dev, &df->boost_freq,
DEV_PM_QOS_MIN_FREQUENCY, 0);
ret = dev_pm_qos_add_request(&gpu->pdev->dev, &df->boost_freq,
DEV_PM_QOS_MIN_FREQUENCY, 0);
if (ret < 0) {
DRM_DEV_ERROR(&gpu->pdev->dev, "Couldn't initialize QoS\n");
return;
}
msm_devfreq_profile.initial_freq = gpu->fast_rate;